Good working pickup lines

How do you approach women -you don't know- in bars? What pickup lines are good?

I used "Do you like short love affairs? I hate them. I've got all weekend" and "Thats a nice dress, it would go great with my floor"

A nice collection can be found at a site called randompickupline . com, but what's your best one?

Good ones even if I understood only a few...LOL!